Filter



(No Model.)

J. TOTHAM.

FILTER.

Patented Peb. 8,1898.

W/TNESSES:

A f TOR/VE mi THE cams PETERS co.. PHmoLn'no.. wAsHmsTQN. n. c.

.llivrrnn vSTATES PATENT OFFICE.

JAMES TOTHAM, OF NEV HAVEN, CONNECTICUT.

Fmi-ER.

SPECIFICATION forming part of Letters Patent No. 598,719, dated February 8,1898. Application tiled July 12,1897. Serialnll'o. 644,248. (No model.) l

T0 all whom t may concern,.-

Be it known that I, JAMES TOTHAM, of the city and county of New Haven, in the State of Connecticut, have invented a new and useful Improvement in Filters, of which the following is a full, clear, and exact description when taken in connection with the drawings, which form a part thereof, and in which- Figure lrepresents a Vertical section through a combined faucet and filter embodying my invention; Fig. 2, a detail side elevation of the filter-plug, filter-spindle, and operating-rod; Fig. 3, a bottom view of the filter-plug or cap-spindle; Fig. 4, a side elevation of the top of the filter; and Figs. 5 and` 6, vertical'sections through a part of the filter-cap plug, showinga modification of my invention.

In all figures similar letters of reference represent like parts.

This invention relates to filters, and is shown applied to that class in which separate outlets are provided for filtered and unfiltered water, and has for its object certain improvements, such as the provision of a self-closing valve separating the filter from the inletpipe operated by mechanism from a turning outlet, means for readily removing the filtering substance for cleaning, and other improvements set forth hereinafter.

In the drawings, A represents a pipe with its' inlet end a adapted to be screwed into an ordinary supply-pipe, while its outlet end a is adapted` to carry a lfaucet Bf Through this pipe A unltered .water may pass di rectly from the supply-pipe to the faucet B. On one side of the pipe A is a cylindrical shelldC of a filter formed integral with or secured to the pipe A and an opening cinto the pipe, in which opening is screwed a hollow cylindrical valve-seat D, with lateral perforations or slots d. A spindle E, extending vthrough the valve-seat D, is capable of lonin its position in the valve-seat. By this means the valve e is normally and automatically held in its seat and the opening between the pipe A and filter C closed.

At intervals on the exterior of the upper edge of the-shell C are fianges c', and the top G of the filter is provided with `corresponding flanges or clamps g, whichengage the ous-stone cylinder I, through which the water is filtered.

When itis desired to cleanse the exterior of the cylinder I, (that portion on which the sediment collects,) it is only necessary to loosen the setscrew g', turn the top G so that the clamps g are disengaged from the fianges o', and lift the top, when the cylinder I is raised therewith and may be removed for cleansing.` Between the upper edge of shell C and top G washers J may be secured by screwing them onto the downwardly-extending portion g3 of the top.

1 Into the passage g or, more properly, into an upward extension thereof a hollow cylindrical plug or cap spindle K is adapted to be screwed, and the screw-threads 7o on the interior face of the ,passage g2 and the exterior `of the plug K are, as shown in Fig. 2, coarse screwed onto the upper end of the topG.4

Washers m, of brass, felt, and rubber, are in- IOO terposed between the plug K, top G, and cap M. The upper end 7c3 of the plug K is internally threaded -to receive the lower end of a curved outlet O.

In operation, as above stated, the unfiltered water iiows through the pipe `A to the faucet B, as the valve c normally closes the opening into the filter C. When filtered water is desired, the outlet O is turned and the plug K. secured thereto, whereupon the plug K is forced downward on the quick thread lt. The operating-rod L, being rigidly connected to the plug K, is likewise forced downwardin the filter-spindle I-I (in which it is capable of lengthwise movement) until it bears on the upper end of valve-spindle E, forcing it downward against the tension of spring F and opening the valve e. Valve c being opened the water passes through the slot-s d in the valveseat D and enters the shell C, whence it percolates through the stone cylinder I. After entering the interior of the cylinder I the water passes into the filter-spindle H, through the slots h, up into the passage q2 in the top G. From the passage g2 water enters the interior of plug K through the perforations 7a', and thence to the outlet O. To stop the flow of the filteredv water, turning the outlet O and plug K in the reverse direction raises the rod Lfrom abutment on the valve-spindle E, which is thereby released to be raised by the spring F to close the valve e. A feature of this construction is that the screwthreading 7c on the plug K and interior of the passage g2 instead of having the usual single starter or one end of the thread'has a number of starters or threads, (shown as eight in Fig. 3,) so that by removing the cap M and unscrewing the plug K the plug K and with it the outlet-O may be turned on a horizontal plane to assume various positions relative to the filter C, so that the outlet O may project in any desired direction.

A modification of the construction of the plug K whereby an automatic return is given the outlet O when the hand of the user is removed therefrom is shown in Figs. 5 and 6. Instead of the quick threads on its extension the plug K is provided with an upwardly-extending angular cam p and on the bottom of cap M is a corresponding downwardly-projecting cam p. A disk R is tted in the passage g2 with perforations r, and a spring S bears on its upper face and the lower face of the plug K. Owing to the inclined edges of cams p and 19 and the constant upward pressure on the plug K by the spring S the plug K and cap M will be constantly forced to assume the position shown in Fig. 5, where the cams interlock each other,for when turned from that position, as shown, Fig. 6, the cams will tend to slide on their inclined edges to their normal position.

The normal position of the plug K and cap M is adjusted to be when the operating-rod L (attached to plug K) is raised from contact with thevalve-spindle E and the valve c closed. Upon turning the outlet O and plug K the inclined edges of the cams p and p tend to force the plug K downward and with it the operating-rod L to bear on valvespindle E to open valve e; but as soon as outlet O is released spring S tends to force of,)' what I claim, and desire to secure by Letters Patent, is-

l. The combination with a direct-flow pipe for unfiltered water; of a shell rigidly secured thereto and adapted to-contain filtering material; an opening from said direct-flow pipe into said filter an independent valve for closing said inlet; and a spring for automatically closing said valve in said inlet, substantially as described.

2. In a filter, the combination with the shell in which is the filtering material; of an outlet constantly permitting the passage of water from the interior of said shell, and capable of turning on its axis; an inlet to said shell; a valve for closing said inlet; a spring automatically closing said valve in said inlet; and mechanism for opening said valve as said outlet is swung on its axis, substantially as described.

3. In a filter, the combination with the shell in which is the filtering material; of an outlet therefrom capable of a limited longitudinal movement therein; an inlet thereto; a valve mounted on a spindle for closing said inlet; a spring bearing on said valve-spindle to normally close said valve in said inlet; and mechanism connected to said outlet and moved longitudinally therewith by which said valve may be opened upon the movement of said outlet, substantially as described.

4. In a filter, the combination with the shell in which is the ltering material; of an outlet therefrom capable'of a limited movement therein; an inlet thereto; a valve for closing said inlet; means for automatically closing said valve in said inlet; and an operating-rod connected to said outlet to open said valve upon the movement of said outlet, substantially as described.

5. In a filter, the combination with the shell of a hollow filter-spindle therein; a hollow cylinder of filtering material mounted on said filter-spindle; an outlet from said shell capable of a limited movement therein; an inlet to said shell; a valve-spindle capable of limited longitudinal movement in said inlet and carrying a valve adapted to close said inlet; a spring bearing on said valve-spindle to normally close said valve in said inlet; and an operating-rod extending through said filterspindle, connected to said outlet to bear on IOO IIO

said valve-spindle and open said valve upon the movement of said outlet, substantially as described.

6. In a filter, the combination with the shell in Which is the filtering material; of an outlet capable of a limited turning movement in said shell; means for automatically returning said outlet to its normal position; an inlet to said shell a valve for closing said inlet; means for automatically closing said valve; and an operating-rod connected to said outlet and adapted to open said valve upon the movement of said outlet from'its normal position, substantially as described.

7. In a filter the combination With the shell containing the ltering material; of an out let capable of a limited longitudinal movement in said shell; means for automatically returning said outlet to its normal position; an inlet to said shell; a valve for automat- In Witness whereof I have hereunto set my 3 5 hand this 8th day of July, A. D. 1897.

JAMES TOTHAM.

lVitnesses:

J. J. HENDERSON, SAMUEL H. FISHER. 

